CAJ | 학술논문

采用盆栽方法研究10个不同盐度水平下的海芒果、黄槿实生苗生长特性、叶绿素含量及叶绿素荧光参数变化情况。结果表明：随着盐度的增加，2种半红树植物的苗高、地径、根、茎、叶干重均逐渐变小；叶绿素含量呈波动式变化；除处理2的黄槿苗木（盐度为0．2％）外，叶绿素荧光参数PSII原初光能转化效率（E／功和PSII的潜在活性（FV／Fo）值均低于ck（清水）。以而／砌作为判断植株是否受胁迫的重要指标来看，黄槿在土壤盐度低于0．6％、海芒果在低于i．2％时表现出较好的耐受性。
채용분재방법연구10개불동염도수평하적해망과、황근실생묘생장특성、협록소함량급협록소형광삼수변화정황。결과표명：수착염도적증가，2충반홍수식물적묘고、지경、근、경、협간중균축점변소；협록소함량정파동식변화；제처리2적황근묘목（염도위0．2％）외，협록소형광삼수PSII원초광능전화효솔（E／공화PSII적잠재활성（FV／Fo）치균저우ck（청수）。이이／체작위판단식주시부수협박적중요지표래간，황근재토양염도저우0．6％、해망과재저우i．2％시표현출교호적내수성。
The effects of salt of ten different concentrations on the growth, chlorophyll content and chlorophyll fluorescence of potted Hibiscus tiliaceus L. and Cerbera manghas L. were studied. The results showed that as the salinity increased, seedling height, basal diameter, root stem and leaf dry matter of the two semi-mangroves reduced gradually, and with fluctuated chlorophyll content. All treatments presented lower (Fv/Fo) and (Fv/Fo) than ck, except the treatment of H. tiliaceus L. seedling under 0.2% salinity where the efficiency of PSII primary photochemistry (FvFm), potential photochemical efficiency (FvFo) were slightly higher than ck. Using FJFm as the indicator to determine their salt tolerance, we can conclude that H. tilictceus L. can tolerate to the salinities below 0.6% and C. manghas L. can well withstand the salinities lower than 1.2%.